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nu. 622,973. 9 Patented Apr. |899.

- E. PAnTmGToN.

RAG ENGINE.

(Application led Jam 6, 1898.)

(No Model.)

3 Sheets-Sheet l.

, m. 41. a/ E MLM 'H15 T-roawsvs.

Nn. 622,973. Patented Apr.l Il, |899.

E. lPARTINfTN.

BAG ENGINE.

(Application led Jan. 6, 1898.)

(No Model.)

3 Shaets--Sheet 2.

WwNsef= e= inventata HISJQJTORNYS.

Patented Apr. Il, |899. E. PARTINGTDN.

RAG ENGINE.

(Application filed Jan. 6, 1898.)

3 Sheets-Sheet 3.

(No Model.)

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I TNvENTep, FnwnanPnRTmaToN BY l WEIN-5.55555.

www? ff UNITED STATES PATENT OFFICE.

EDWARD PARTINGTON, OF GLOSSP, ENGLAND.

RAG-ENGINE.

SPECIFICATION forming part of Letters Patent-No. 622,973, dated April 11, 1899.

Application filed January 6 1898.

Y a subject of the Queen of Great Britain, re-

siding at Glossop, in the' county of Derby, England, have invented new and useful Improvements in or Applicable to Rag-Engines and other Beating-Engines Used in the Manufacture of Paper-Pulp, of which the following is a specification. l

This invention relates to that part of the rag-engine or similar machine which is provided with the grinding and pulping surface. For example, in a rag-engine it is applicable to the bed or beaterplate and to the rotary beater or beater-roll, and in what is known as an American refining-engine it is ap# plicable to the construction ofthe rotary disk or beater.

My invention Will be readily understood on reference to the drawings hereunto annexed and the following explanation thereof.

Figure l is a longitudinal section, Fig. 2 a transverse section, and Fig. 3 a plan view, of the beater-plate of a rag-engine made according to my invention. Fig. 4 is a plan view of a modification thereof. Figs. 5, 6, and 7 are a plan view and longitudinal and transverse A sections, respectively, showing the application of my invention to the beater-roll of a rag-engine. Figs. 8 and 9 are a face view and a section of the rotary disk or beater of an American refining-engine made according to my invention.

For the purpose of my invention I dispense with the steel knives, plates, and dividers now in use in such engines, and I use a onepiece casting or block a of suitable metal, (steel, for example.) This hardemetal block ishoneycombed with cells l), with just sufficient space between the cells to leave suitable cutting Vedges of the metal aforesaid, and I iill in these cells with hard wood, (say teak,) metal borings, or other suitable material or metal softer than that of which the block d is made. This iilling is made flush withtheV working surface of the bed or beater-plate and will wear away rather quicker than the latter, leaving it slightly raised.

The cells may be circular, as shown on the principal figures of the drawings,or otherwise formed to leave curved edges, or they may be made diamond-shaped, as shown at Fig. 4, or

otherwise inclined with regard to the motion of the machine, and these edges will have a specially advantageous eifeet upon the fibers Serial No. 665,830. (No model.)

considerably better than that of the knives now employed. The circular cells, however, give the best eifect. In all cases the cells eX- tend all the way through the block, so that defective lling can be readily driven out and replaced.

A beater-plate made according to my invention will also take much less labor and time to set in the machine than the knives and dividers now in use, besides being evidently much cheaper to construct and more durable.

When applying my invention to a beaterrol-l, (see Figs. 6 and 7,) along narrow frame or block made as above described is wedged into each of the grooves of the roll c in place of the usual knives and dividers.

When applying my invention to the Ameri'- can refining-engine, (see Figs. S and 9,) the disk d itself is made with transverse cells or recesses b, filled in as above described.

This composite block or surface will have a double effect-'that of cutting the fibers, if required, by the steel or hard-metal edges and that of rubbing or separating the fibers by the wood or other suitable filling.

I claim as my invention-` v l. In rag-engines and other beating-engines used in the manufacture of paper-pulp, a hard-metal block honeycombed with cells and fillings therein of hard wood, metal borings or other suitable material softer than that of which the block is made, substantially as and for the purposes hereinbefore referred to.

2. In rag-engines and other beating-engines used in the manufacture of paper-pulp, a hard-metal block honeycombed with circular cells and llings therein of hard wood, metal borings or other suitable material softer than that of which the block is made, substantially as and for the purpose described.

3. In rag or other engines used in the manufacture of paper-pulp, a hard-metal block honeycombed with cells extending all the wav through the block and llings therein of material somewhat softer than that of which the block is made, substantially as and for the purpose described. Y

In testimony whereof I have signed my name to this specification in the presence of two subscribing witnesses.

EDWARD PARTINGTON.

Witnesses:

GEORGE DAvIEs, JNO. HUGHES.

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